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kpg712
Dodge Dakota
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5/27/2006
05:41:50
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 Subject: question on a.c. repair
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Truck is a 98 dakota with a 3.9. I need to replace the a.c. compressor & maunfacturer says i need to also replace orifice tube & accumulator. 0k, but where is the orifice tube located? Are there any special tools I may need to replace these parts? System is empty so I don't need to vacuum it. Thanx for any tips that u can give me.
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zzark
*GenII*
5/27/2006
09:33:07
| RE: question on a.c. repair
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In my 94, the orifice tube was in the tube going to the condenser. You need needle nose pliers to pull it out.
You will need a spring lock coupling tool set, used to disconnect the AC lines.
You will need oil for the compressor.
Check the specs, but it should be PAG 100 oil.
You should by an o-ring kit.
And a gauge set.
Evacuating is removing the R134a.
Pulling a vacuum removes the moisture from the system, and it will tell you if there are leaks.
You MUST vacuum the system prior to adding the R134a.
I suggest buying the accumulator from the dealer.
I tried 2 from Advance Auto which did not fit.
The dealer one is more money, but it came with the low-pressure switch, which is $20-50.
zzark
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Dan M
Dodge Dakota
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5/27/2006
18:41:51
| RE: question on a.c. repair
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I used replacement parts from advance for all of my a/c components except the condenser (did not need to replace) and the compressor (salvage yard). I had no issues in my 95.
I recommend the plastic spring lock tool set verses the metal ones. Much easier to use. Around $10 at parts stores (comes with 4 sizes, each a differnet color). Input and output to evap core were different sizes.
As zzark said, replace the o-rings. You can get a set of multiple sizes for just a couple bucks.
When you had it tested, if it was leaking, they should not have added more r-134. So you should be ok to just disconnect the hoses. Replace the parts and o-rings. Put it all back together and vacuum out the air. You can pay a shop to do this (call around some won't just vac out air, they'll want to do it all) or do it yourself with an air compressor and attachment (I know harbor freigh sells one). I found a shop to vac out mine when i did it (charged like $20 or something as i recall). When they did this, they verifed I had no leaks. I went home and added the r-134 from cans that included oil.
- Dan M
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Bump
Dodge Dakota
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6/01/2006
02:16:03
| RE: question on a.c. repair
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Bump
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